Thank you guys, that's the step I was missing. I'm almost sure I had tried it earlier, maybe I had to trigger some other action before it would work. I've finished the game, thanks for making and sharing it!

hey there!1st of all: what a great game! thx a lot.I am in the same situation as Tinytim. When I try to talk on the intercom with scar the dialog only says :"I don;t see why I should be talking on the intercom system"What can I do?Thx in advance

I fixed the telescope but can't use it from the roof, I've been to the basement and found the keys, I have two plastic soldiers, have cut the antenna, and I have seen a short cutscene with a yet unfamiliar room where the dead animal was lying.

If Moss is near the door sensor, the shutter will be raised so that Scar can look out the window

Here's a walkthrough.

There's lots of little things you can do and interact with that are not mentioned here. There are signs scattered throughout the base, you can use these to quick travel a bit. You can't use the first sign until you reach the second one.

Try to open the right locker, it's stuck/ Talk to Scar/ Take his KNIFE from the left lockerUse the KNIFE on your locker and get the ACCESS CARD/ use the ACCESS CARD on the panel to enter the weapons roomUse the computer in the bottom left hand corner to open the shutter for the LASERS. Take the AMMO/ load the AMMO into the LASERS/ get LOADED LASERStalk to Slug about the mission/ Beam down/ walk right and go upAvoid the car by hiding behind the tree/ walk left and see the soldiers/ you can now switch characters*Switch to Scar*(There are three roof sections)Walk right and go downstairs/ see the key under the grate/ take the PILLS from the cabinetGo left and see the scientist and go back to the roof/ pick up SKUNKuse the SKUNK on the AC unit that's working/ go back downstairsRead the note on the wall/ take DVD from drawer/ watch DVD/ look at agent in windowGo left and use control panel to move alien over outlet, use bottom left burner to have creature bust out of tubeGo left see creature in vent/ go downstairs/ go to the right and look at monitor that is showing the road*If Moss is next to the guard booth Scar will see him and try to help**If Moss is not next to the guard booth Scar will not see him*Once Scar has seen Moss he can now use the intercom system/ go left and down into storage roomTake the ACID/ open cabinet and take TELESCOPE/ use intercom to distract guards for Moss*Switch to Moss*Use KNIFE on soldier/ take GUN/ go left until you lose the gun/ walk left and read work order near crane/ continue left until you are stuck in the port-o-pottyTalk way out/ press button on wall to raise barrel/ go left to the tentTake ARROW from tree/ go in tent/ take MAP and STRAP from the right cabinet/ leave tent and use sign to quick travel Walk right and use sign to quick travel to the cave/ look at map to see the large X/ enter caveTake BOTTLE/ look at grate, we need a screwdriver/ leave cave and use sign/ walk left and use ARROW on the fan/ get SCREWDRIVER Walk left to tent and use BOTTLE on barbaque, bird flies away/ use sign/ walk right until bird lands in nest/ interact with bird nest/ take KEYUse KEY on crane panel/ use KNIFE on tube/ take TUBEGo to port-o-potty room*Switch to Scar*Use sign on wall to go to roof/ use ACID on lock to get PLIERS/ use PLIERS on antenna/ take ANTENNAUse PLIERS on barrel, it's oil/ go downstairs to where the lasers were and use ANTENNA on ectoplasma/ get STICKY ANTENNAUse STICKY ANTENNA on grate to get the KEY/ go downstairs and go to large bathroom/ look at middle stallOpen middle stall and take CONDOM and GLASSES/ go to the command center and use KEY on elevatorKill mice for fun/ read about new mixture of DNA on computer/ go right and wait next to shutter *Switch to Moss*Use botton to bring barrel down/ use TUBE on oil/ get BOTTLE OF OIL/ use STRAP on generator/ use OIL on generator/ start generatorGo to cave/ use SCREWDRIVER on grate/ Go all the way left and up the ladder/ look at vent near ceiling/ take KEYS from furnaceGo back down in the sewer and up the middle ladder/ use KEYS on door near magnet/ go near door senor, shutter raises for Scar*Switch to Scar*Use GLASSES on TELESCOPE/ get WORKING TELESCOPE/ use TELESCOPE on window to see the license plate...814125(You can use the switch next to the window to turn the fan that it outside, on and off, for Moss)Type in 814125 into the panel next to the metal door/ go in room and take PAPER TOWEL/ go left and become Slug*Use Slug to kill human*Go down and see dead agent/ open dumbwaiter/ the Doctor wants his meatball heroGo to kitchen and take BREAD/ open frig and take MEAT/ go back to dead agentUse MEAT on BREAD/ get SANDWICH/ use PILLS on SANDWICH/ get DRUGGED SANDWICH/ use PAPER TOWEL on DRUGGED SANDWICH/ get PACKAGED SANDWICHUse PACKAGED SANDWICH on bucket/ something falls down shaft/ we need to see if our plan workedTake CAMERA from small computer*Switch to Moss*Go to basement and take HANDLE from dumbwaiter/ use HANDLE in small hole in the room to your right/ rise tanks*Switch to Scar*Go to blue room with black board and use CONDOM on tanks/ get HELIUM CONDOM/ use CAMERA on HELIUM CONDOM/ get SPY BALLOONUse SPY BALLOON on dumbwaiter/ see Doctor passed out*Use the slime*Go down the grate on the left/ walk to the right and use the ledge/ see valve fall off/ walk to the right and go in vent*Switch to Moss*Pick up the VALVE on the floor next to the tree (cranes magnet/door room)/ use the VALVE on the pipe near the craneThe elevator now has pressure*Switch to Scar*Press the button for the elevator/ Scar is captured/ speak to agents and take the BRANDING IRONUse the BRANDING IRON on the fire/ get HOT IRON/ use HOT IRON on cranes window/ oops wrong button/ go to the barrelPress button and ride the barrel to the roof/ walk left and take the GUN from the magnet/ walk left and see helicopterGo downstairs and walk left....

I hope you had fun with it. There is an achievements page, nothing special. Find them all to be a real super agent.

1) Get the flashback on the saucer when you look at the laser security system2) Fly the saucer3) Carve a love message in the tree when you beam down (One room to the right)4) find all 3 toy soldiers...one is in the trunk...one is behind the fan outside...one is in the cabinet next to the bathroom5) Drink from the dripping water in the sewer6) Bless the dead alien on the operating table7) Watch both DVD's on the DVD player

*If Moss is next to the guard booth Scar will see him and try to help**If Moss is not next to the guard booth Scar will not see him*Once Scar has seen Moss he can now use the intercom system/ go left and down into storage room.